3 years ago

Well there are 5 questions Please help Will give brainliest

Mathematics

1 answer:

Crazy boy [7]3 years ago

6 0

Answer:

1. 30

2. x = 0

3. x = 10

4. 11.7

5. 60

Step-by-step explanation:

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What are the first and last terms of this geometric series

11Alexandr11 [23.1K]

ANSWER

E. 10 and 640

EXPLANATION

The given series is

$\sum_{i=1}^45 \times 2^{2i-1}$

To find the first term of the series we substitute i=1 to get,

$a_1 = 5 \times {2}^{2 \times 1 - 1}$

$a_1 = 5 \times {2}^{ 1} = 10$

For the last term of the series, we substitute i=4 to obtain,

$a_4 = 5 \times {2}^{2 \times 4 - 1}$

$a_4 = 5 \times {2}^{7}$

This implies that,

$a_4 = 5 \times 128 = 640$

Therefore the correct answer is E

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3 years ago

Hao has 16 gallons of water, he drinks one half gallon everyday, how many days will the water last?

Zarrin [17]

16 * 2 = 32
1 gal. = 2 half gal.

ans:32 days

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3 years ago

Find the solution for the system of equations y=4x+12<br> Y=6x+8

madam [21]

-12=4x-y
(-8=6x-y)-1

-12=4x-y
8=-6x+y

-4=-2x
/-2 /-2
2=x

Y=6(2)+8
Y=20

(2,20)

5 0

2 years ago